http://www.ehow.com/how_6386266_extract-oil-water-science-project.html
Day 1:
1. How much water does one (1) human being need per day to survive on this tropical island? How much water do those remaining on the island have? How many days supply is that?
  • 8 cups a day

  • 32 bottles

  • 11 days
2. What will be the best way to purify the water?
  • using the supplies from the island (ex. sand, charcoal, etc.)
3. Will you use trial and error to find a suitable means? Is there another way?
  • trial and error, use logic and any information obtained in class